Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WA6IHZ callsign genealogy
Currently held by KNAPP, MICHAEL W
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by WA6IHZ's current licensee, walking backwards.
- KNAPP, MICHAEL WFLgranted 2010-01-28cancelled 2010-02-20
Successor callsigns
Callsigns held now by people who previously held WA6IHZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WA6IHZ, oldest first.
- KNAPP, ROGER A CA1995-11-30 → cancelled 2007-12-01
- KNAPP, MICHAEL W FL2020-02-11 active